Long term biological positioning observation dataset at Helen Station (2005, 2010, 2015)

a. Data content (data file/table name, including observation index content)

The long-term biological positioning observation dataset of Hailun Station (2005, 2010, 2015) reflects the situation of the farmland ecosystem in Hailun City, Heilongjiang Province, including multiple indicators such as sowing amount, sowing area, application amount, irrigation amount, density, root dry weight, yield, etc.

b. Construction purpose

Mainly used for monitoring the dynamic changes of the national farmland ecosystem and researching related aspects of agricultural ecology.

c. Service object

National policy makers, students and researchers engaged in related research, management and teaching personnel, etc.

d. Time range of data

2005, 2010, 2015

e. The spatial range of data

National Field Science Observation and Research Station of Heilongjiang Hailun Agricultural Ecosystem in Hailun City, Heilongjiang Province.